Gravity and Branes

Does the weak force of gravity offer evidence of a 10 dimensional world? Find out more now!

Category:

Science & Technology

Tags:

• gravity
• branes
• string
• dimension
• two-dimensional
• three-dimensional
• intensity
• membrane
• quarks
• electrons
• graviton
• leak
• LHC

[RvNYC]

Is Gravity expected to propagate throught the entire set of dimensions. That is seen to dim at a factor of nine as stated here?

[cassiopeiaproject]

@RvNYC That is one explanation for why gravity seems so weak compared to the rest of the known forces. If the extra dimensions are small, then on a small scale, gravity may behave in an other than inverse-square manner; but on scales where we can measure the strength of gravity, there are only the three spatial dimensions we recognize, and the inverse-square behavior is accurate.

[magichristo]

Einstein's view of spacetime, if true, would disprove the existence of gravitons, right?

[cassiopeiaproject]

@magichristo ravitons are certainly unnecessary in Einstein's view.

[Silentsam7532]

My only problem with this theory is that we do calculate gravity getting weaker as a square of its distance just as light gets dimmer. This would make gravity to work inn the same dimensions as light, just weaker.

I can't help but dismiss the idea of us living in a 3 dimensional universe though since number systems can only form in 1, 2, 3, or 8 dimension systems. I think our universe is either 4 or 8 dimensional. I like 8 myself. The phase space idea is interesting.

[Wavanova]

@Woreyel It doesn't follow the scientific method, sure, but it's a mathematical curiosity with some very solid scientific backing behind it.

[Woreyel]

Maybe's, probably's, could-be's, perhaps because this is not observable nor testable nor repeatable then it shouldn't even be considered science!!

[Zurround100]

we should thank god for these "other dimensions", if gravity was as powerful as it should be life could not exist all matter would squash like a bug.

[CACBCCCU]

The FTL neutrino speed measurements are a bit of a surprise. Seems there isn't much of a GR effect available to explain it as a shortcut past curved space, light doesn't bend very much on Earth, not sure if it's even a measurable effect.

Probably way off here, but for me neutrino mass oscillation is oddly suggestive of imaginary mass for the reason that complex roots of unity on the imaginary axis of the complex plane of exponentials are associated with an oscillation response.

[CACBCCCU]

Guess I should be clear that I used the idea of gravity being "off the brane" differently than it's typically used, where it's the reason for gravity's relative weakness compared to other forces. To me, gravity is off EM's brane in a time/distance sense, which I guess could have something to do with nonlocalism and uncertainty through the EM brane, but these aspects in EM might have more to do with complementary charges spinning, maybe gravitational charges, maybe just electrostatic charges.

[CACBCCCU]

I left out the six compactified non-spacelike, non-timelike dimensions - CY manifolds, supposedly. That's the theory of the M. Oh so liquid, locally smooth and uniform and supposedly quantizable, making the grains of reality and simple to wrap one's head about, no doubt. I may have been around the idea in print too much, saw something done in some papers and books, just been around long enough thinking about it to know it matters little to me, as it's not saying much about gravity, it's just GR.

[CACBCCCU]

If I understand it correctly, space-time is defined by light and called a brane. I think it's supposed by some to be a 5-dimensional brane or "5-brane" because such space-time is described as curved.

Supposing gravitons are the basis of gravity and don't curve means they are "off" said brane, but it could also mean space-time is only 4-dimensional. One can't see a graviton because gravitons are so weak in effect, accordingly some get the impression it's off in an unseen "extra" dimension.

[kernel83]

@cassiopeiaproject Makes sense... actually, may be those extra dimensions aren't that tiny; but gravity is so weak that we are unable to measure it on that scale... right? Thanx again...